On the homomorphisms of power-set Q-algebras

Han, Song; Fang-fang, Pan

doi:10.1007/s00233-016-9777-x

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…All MCCs exhibited typical diffraction patterns of cellulose II at about 12°, 20°, 22° and 34.7°, assigned to the diffraction planes of (101), (10‐1), (002) and (040), respectively . Generally, the transformation of cellulose I β to cellulose II could be occurred by regeneration (dissolving and precipitation of cellulose), or mercerization pretreatment (treating with 20% (w/v) NaOH and wash with water) or ionic liquid treatment . In the present work, MCC with cellulose structure II could be obtained simultaneously during the production without any pretreatments.…”

Section: Resultsmentioning

confidence: 62%

“…These two peaks indicated the oxidation reaction of OH at C6 position and the presence of sulfate groups on the MCC surface. The band at 899 cm −1 belonging to β‐glucosidic bond in cotton wool became shifting to 889 cm −1 in MCC, which was a characteristic of transition from cellulose I to cellulose II …”

Section: Resultsmentioning

confidence: 99%

“…Cellulose I is a common crystalline form in almost all native plants. Cellulose II has higher chemical reactivity than cellulose I. Cellulose I can be converted to cellulose II by mercerization via alkaline and ionic liquid treatment . Due to its special properties, cellulose II has broad applications in chemical industries …”

Section: Introductionmentioning

confidence: 99%

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Preparation and Characterization of Microcrystalline Cellulose (MCC) by Acid Hydrolysis Using Microwave Assisted Method from Cotton Wool

Kusumattaqiin

Chonkaew

2015

Macromolecular Symposia

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Summary:The microcrystalline cellulose (MCC) was extracted by microwave assisted from cotton wool. The effects of sulfuric acid concentration, time and temperature on the yield were investigated by a single factor experiments and the preparation condition were optimized using 2 3 factorial design and analyzed by statistical test. The obtained MCC were characterized using particle size analyzer, FT-IR and XRD. The results showed that the main parameter in order of increasing effects on the MCC yield were time, temperature and acid concentration. The optimum condition was found at acid concentration 55% (w/w), time 1 minute and temperature 30C. The range of particle size at that condition was from 0.052 mm to 353.078 mm, the yield was 78.67% (w/w) and the crystallinity index was 53.16%. Moreover the crystal structure transformed from cellulose I to cellulose II. The crystal structure of cellulose II was obtained without mercerization and ionic liquid treatments.

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Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 99%